2D LCT maps with an ROI of 30″ × 30″ show the photospheric horizontal proper motions for the three time periods indicated above each panel. Rainbow-colored arrows refer to magnitude and direction of the average flow vectors, which are superposed on a time-averaged TiO image. The white contours outline the pores in the corresponding TiO images for intensities lower than 0.8, while the pink contours delineate the regions for which the inflow velocities are computed. The black rectangle in the lower right indicates the locations of expanding granules.